Marking-stamp



(No Model.) 2 Sheets-Sheet 1. F. M. BULKLEY.

MARKING STAMP.

' Nb. 331,475. Patented Dec. 1, 1885.

(No Model.) 2 Sheets- -Sheet 2. F. M. BULKLEY.

MARKING STAMP.

No. 331,475. Patented Dec. 1, 1885.

UNITED STATES PATENT OFFICE.

FRANK M. BULKLEY, OF BRIDGEPORT, CONNECTICUT.

MARKING-STAMP,

SPECIFICATION formingpart of Letters Patent No. 331,475, dated December1, 1885.

Application filed July 6, 1885.

To all whom it may concern: 1 Be it known that I, FRANK M. BULKLEY, acitizen of the United States, residing at; Bridgeport, in the county ofFairfield and; State of Connecticut, have invented certain? new anduseful Improvements in Marking- Y Stamps; and I do herebydeclare thefollowing 1- to be a1full, clear, and exact description of the linvention, such as will enable others skilledl in the art to which itappertainsito make and use the same. I 1 My invention relates to thegeneral class of l stamps the uses of which necessarily require thatfrequent changes be made in the letters, and has for its object todevise a novel construction of changeablestamp,whichwill perrnit ofalmost unlimited variation of letters or I figures, and will be easy tomanage, durable, and economical in cost.

With these ends in view I have devised the improved construction which Iwill now describe, referring by letters to the accompanying drawings,forming part of this specification, in which- I Figure 1 is a plan viewof the device in operative position; Fig. .2, a central verticalsection; Fig. 3, a transverse section, and Fig. 4 a side elevation.

Similar letters denote the same parts in all the figures. V 1 A is thetype-wheel, which may be of any desired construction or material. Ipreferably, however, turn it in a single piece from a block of wood.

B represents flanges upon the wheel to which the type-holders areattached.

In the drawings I have shown the wheel as having but two flanges. Itwill of course be understood, however, that three or any other suitablenumber of flanges may be used.

Cis the frame-work, which consists simply of a pair of side pieces, 0,joined at one end, to which a handle, D, is attached.

E represents the type-holders, which consist simply of base-piece E, andside springs, E the operation of which will be more fully explained.These type-holders may be made independently of each other, butIpreferably make them in a single strip, as shown, which extends entirelyaround the flange of the wheel. This strip of type-holders is preferablyformed Serial No. 170,737. (No model.)

in dies-that is blanked out and struck up to the desired shape. They areattached to the flanges of the wheel by nails or pins, as indicated inFig. 1.

any suitable manner. I preferably,however, use wooden blocks, theletters themselves beingformed of rubber and attached to the blocks inthe usual manner. The types are held in position by being pressed inbetween springs E the springs being slightly curved, as shown in-Fig. 3,and being stiff enough to hold the letters firmly in position withoutthe use of any other securing device.

F represents loops at the ends of .the types, which serve as handles, sothat they may be attached or detached without danger of inking thefingers.

G represents guard-rings, which I place outside of the flanges. Theserings maybe made in any suitable manner, but are preferably cast in asingle piece, and are provided with arms G, which are bent inward andserve as a means of attachment to the type-wheel, as shown in Fig. 3.These rings project out slightly beyond the edges of the side springs,so that in use there is no danger of the springs themselves coming incontact with an article being marked, after the impression of the typesis completed, as the hearing will be upon the peripheries of the rings.One of the rings is also provided with a bolt-hole, H.

K is a spring-bolt, which is secured to the frame-work in any suitablemanner, the end of which is adapted to spring into hole H at thecompletion of each revolution of the typewheel. The outer ends of theside pieces of the frame-work are provided with slots L, extendinginward toward the handle, in which the journals M of an inking-roller,M, bear.

N represents an arm at the end of each side piece, projecting eitherupward or downward at any angle to the side piece. These arms areprovided with slots N, in which the journals 0 of a distributing-roller,0, rest.

1? represents disks at the ends of the journals, through which saidjournals loosely pass, and are slightly headed over outside of the disk,so that while the journals are free to rotate in the disks the disksthemselves cannot slip off from the ends of the journals.

F represents types, which may be made in The ends of the journals arepreferably turned down slightly, leaving shoulders, (not shown,) againstwhich the disks rest.

Q, represents springs, one of which connects each, pair of disks, andanother connects the disk at each end of the inking-roller journal withthe side piece of the frame-work, as clearly shown in Fig. 4. The actionof these springs is to keep the distributing roller pressed against theinking-roller and the inking-roller pressed against the faces of theletters. The bottoms of slots L, however, prevent the inking-roller frombeing drawn down far enough to'jcomelin contact with the ends of springsE when vacancies occur in the letters.

The type wheel is journaled in the side pieces in any suitable manner. Ipreferably,

. however, use wood-screws, R, which pass tion.

[ordinary wear of the journals. In use the desired letters or figuresare placed in the proper position in the type-holders, the roller inkedin the usual manner, and the device is ready for use, it being shown asin operative position in Fig. l.

- As stated above, at the completion of each revolution of the wheel theend of the springbolt engages hole H in one of the guard-rings, thuslocking the wheel against further rota- The bolt is ordinarily providedwith a thumb-piece, as at K, by which it is operated. If it is desiredto make another impression, it is simply necessary to press the boltoutward until its end is disengaged from hole H.

In use the end of the bolt rests against the guard-wheel, so as to beready to spring into the hole the instant the revolution is completed.When it is desired to change letters or figures, they are simply liftedoff by loops F and new ones supplied in their places. No locks, bolts,or clamps are required to hold the types in place. I have found inpractice that the simple pressure of the side springs is quitesufficient.

I do not desire to limit myself to the exact details of construction asillustrated in the drawings, as it is obvious that the construction maybe greatly changed without departing in the slightest from the spirit ofmy invention.

I claim- 1. A marking-stamp consisting, essentially, of a type-wheel,spring type-holders secured to the periphery thereof, and detachabletypes adapted to engage said type-holders.

2. A type-wheel having flanges and spring bolt-hole at the end of eachrevolution of the type-wheel.

4. The type-wheel and one or more strips of type-holders consisting ofbase and side pieces secured to the periphery of the wheel,

in combination with detachable types adapted to engage the type-holders.

5. In a marking-stamp, detachable types having loops which serve ashandles, in combination with a type-wheel having one or more series oftype-holders secured to its periphery, said typeholders consisting of abase and a pair of slightly-curved springswhich bear upon opposite sidesof the types.

6. The type-wheel having springs 15) secured to its periphery, and theguard-rings 1 having arms by which they are secured-to the type-wheel,one of said rings having a bolthole, in combination with suitableframe-work in which the type-wheel is journaled, and which carries aspring-bolt adapted to engage the type-wheel at the completion of eachrevolution.

In testimony whereof Iai'fix my signature in presence of two witnesses.

FRANK M. BULKLEY.

Witnesses:

A. M. Woosrnn, A. B. FAIRCHILD.

ICO

